Safety-valve.



J. P. BROWN 8: S. OUSBNZA,

SAFETY VALVE.

APPLICATION FILED NOV. 7, 1911..

1,049,662. I Patented Jan,7,1913.

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To all whom it may concern Be it known that we, JOHN F. BROWN andSALVATORE CUSENZA, a citizen of the United States and a subject of theKing of Italy, respectively, and residing at New York, in the county ofNew York and State of New York, have invented certain new and usefulImprovements in Safety-Valves, of which the following is aspecification, such as will enable those skilled in the art to which itapand use the same.

This invention relates to supply valves for use in connect-ion with gasburners, gasolene supply pipes and for various other purposes, and theobject thereof is to provide a safety valve of this classwhich is simplein construction and operation, and which will effectually prevent theaccidental opening of the valve and also prevent accidents whichfrequently occur by reason of the failure to properly close the valve.

"The invention is fully disclosed in the following specification. ofwhich the accompanying drawing forms a part, in which the separate partsof our improvement erodesignated by suitable reference characters ineach of the views. and in which;

Figure l is a sectional side view of a pipe or pipe cou 'ilingattachment provided with our improved valve; Fig. 2 a section on theline 2-'2 of- Fig. 1; Fig. 3 a plan view of a locking rack and collarwhich we employ and which is shown in section in Fig. l, and

Fig. 4 a side view showing a modification.

.ln the drawing forming part of this specishown at l a pipe or pipecoupling in which is mounted an ordinary plug valve 7). The pipe or pipecoupling (1 18 provided with a neck portion a which surrounds the upperend of the valve and with another neck portion a which incloses thelower end of the valve, and in the practice of our invention we mount onthe neck portion a a lock collar 0 havin a segmental or arc-shaped rack0 the lengt 1 of which is preferably greater than one-quarter ofthecircumference of the collar (1', and the collar 0 may be secured to theneck a in any desired manner as for instance, by soldering, or ifpreferred said rack may be formed integrally with the neck a and thepipeor pipe coupling a. The valve b is provided with a'yoke-shaped head I)in which is pivoted a lock lever (I one end of which pro-- to form ahandle and jects as shown at (I I,

18 provided with a the other end of which Specification of LettersPatent. Patented Application ma November 7, 1911. Serial No. 05am,- iz

closing the valve,

nose d which operates in connection with the rack 0 The head of thevalve Z) is also provided, in the form of constructionshown in Fig. l,with a projecting handle 0 which ranges parallel with and beneath thehandle end of the lever d and between which and said lever is placed aspring f which normally. serves to hold the nose (Z of said lever inengagement with the rack 0' \Vith this construction, whenever it isdesired to open .the valve, the handle 6 and the handle end of the lever"are grasped by the hand and the handle end of the lever depressed. Thisthrows the nose (i out of engagement with the rack 0 1 and the valve maybe turned in either direction by means of the handle 6 and the handleend of the lever d which may also serve as means for opening or closingthe valve, and as soon as the handle lever is released the spring atonce forces the nose d into engagement with the rack and the valveislocked against. rotation in either direction. It will also beunderstood that by means of this construction. the valve may be lockedin any desired positionand the amount of'gas, gasolene or other flowingthroughthe pipe or pipe coupling may thus be regulated to the desiredextent.

The construction shown in Fig. 4 is similar to that in Fig. 1 exceptthat the handle a is omitted and a lug or projection is formed on thehead of the valve and between which and the handle end (I? of the lever(Z the spring fis placed. It will be apparent that this construction maybe operated in the same manner as that shown in Fig. 1. the lever (lserving as means for opening and but the construction shown in Fig. 1 ispreferred because of the fact that the handle e serves to an extent toprotect the handleend of the lever and prevent its accidental operation.

Although we have described our proved valve device as applied to anyknit or class of pipes used in connection with gas burners or fixtures,oil supply devicesor pipes, or gasolene supply pipes-or connections.the. said improvement may also be used in connection with steam supplypipes, steam radiators and in many other connections or relations.

Having fully described our invention, what we claim as new and desire tosecure by Letters Patent, is

1. In a gas or gasolene pipe fixture, 'a' valve casing provided with aplug valve and substance at one side thereof with a segmental rack, thehead of the valve being also provided opposite said rack with alaterally directed member, a lever pivoted in the head of the valve andprovided at one end with a curved nose adapted to engage said rack, andthe other end of which projects in the same direction as said member,and a spring mounted between said member and the projecting portion ofsaid lever.

2. In a gas or gasolene pi e fixture, a valve casing provided with a pliig valve and at one side thereof with a segmental rack,

'the head of the valve being also provided opposite said rack with alaterally directed member, a lever pivoted in the head of the valve andprovided at one end with a curved nose adapted to engage said rack, andthe other end of which projects in the same direction as said member,and a spring mounted between said member and the projecting portion ofsaid lever, the projecting portion of said lever also serving as meansfor disengaging the nose thereof fromsaid rack and as a handle forturning said valve. In testimony that we claim the foregoing as ourinvention we have signed our names in presence of the subscribingwitnesses this 4th day of November, 1911.

JOHN F. BROWN. SALVATORE CUSENZA. Witnesses:

C. E. MULREANY, FRANK G. AT LEE.

